The BMW 4 Series Coupe (G22 LCI), specifically the M440i xDrive Steptronic model, represents the facelifted iteration of the G22 generation, launched in March 2024. This variant occupies the performance-oriented mid-to-upper range of the 4 Series Coupe lineup, blending a potent inline-six engine with mild-hybrid technology and all-wheel drive. Production is expected to continue through 2025. The LCI (Life Cycle Impulse) updates brought revised styling, enhanced technology, and refinements to the powertrain, solidifying the M440i’s position as a compelling grand tourer.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Coupe (G22 LCI, facelift 2024) |
| Type (Engine) | M440i (374 Hp) Mild Hybrid xDrive Steptronic |
| Start of production | March, 2024 |
| End of production | 2025 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Combined fuel consumption (WLTP) | 7.7-8.5 l/100 km (30.5 – 27.7 US mpg, 36.7 – 33.2 UK mpg, 13 – 11.8 km/l) |
| CO2 emissions (WLTP) | 174-191 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.5 sec |
| Acceleration 0 – 62 mph | 4.5 sec |
| Acceleration 0 – 60 mph | 4.3 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6e |
| Weight-to-power ratio | 4.6 kg/Hp, 215.6 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 288.2 Nm/tonne |
| Gross battery capacity | 0.4 kWh |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | Under the front hood |
| Electric motor power | 11 Hp |
| Electric motor Torque | 25 Nm (18.44 lb.-ft.) |
| Electric motor location | Front, Longitudinal |
| Power | 374 Hp @ 5500-6500 rpm |
| Torque | 500 Nm @ 1900-5000 rpm (368.78 lb.-ft. @ 1900-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B58B30M2 |
| Engine displacement | 2998 cm3 (182.95 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-scroll turbo, Intercooler |
| Valvetrain | Double-VANOS, VALVETRONIC |
| Engine oil capacity | 7.2 l (7.61 US qt | 6.34 UK qt) |
| Kerb Weight | 1735 kg (3825.02 lbs.) |
| Max. weight | 2220 kg (4894.26 lbs.) |
| Max load | 485 kg (1069.24 lbs.) |
| Trunk (boot) space – minimum | 440 l (15.54 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4770 mm (187.8 in.) |
| Width | 1852 mm (72.91 in.) |
| Width including mirrors | 2081 mm (81.93 in.) |
| Height | 1393 mm (54.84 in.) |
| Wheelbase | 2851 mm (112.24 in.) |
| Front track | 1583 mm (62.32 in.) |
| Rear (Back) track | 1592 mm (62.68 in.) |
| Front overhang | 858 mm (33.78 in.) |
| Rear overhang | 1061 mm (41.77 in.) |
| Ride height (ground clearance) | 129 mm (5.08 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle (turning diameter) | 12 m (39.37 ft.) |
| Drivetrain Architecture | ICE and electric motor drive all four wheels, operating in mixed mode. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | Front: 225/45 R18, Rear: 255/40 R18 |
| Wheel rims size | Front: 7.5J x 18, Rear: 8.5J x 18 |
Powertrain & Engine Architecture
At the heart of the M440i xDrive lies the BMW B58B30M2 engine, a 3.0-liter inline-six cylinder powerplant. This engine benefits from a single twin-scroll turbocharger, direct fuel injection, and BMW’s VALVETRONIC and Double-VANOS technologies for optimized efficiency and responsiveness. The B58 engine produces 374 horsepower at 5500-6500 rpm and 500 Nm (368.78 lb-ft) of torque between 1900-5000 rpm. The “M40i” designation signifies a higher state of tune compared to the 40i models. The mild-hybrid system, utilizing a 48V lithium-ion battery and a 11 hp electric motor, provides a power boost during acceleration and enables smoother start-stop operation. The electric motor is integrated into the drivetrain, assisting the engine and contributing to improved fuel economy. Power is delivered to all four wheels via BMW’s xDrive all-wheel-drive system and an 8-speed Steptronic automatic transmission. This transmission features adaptive shift programs and paddle shifters for manual control.
Driving Characteristics
The M440i xDrive offers a compelling blend of performance and comfort. The 374 hp engine and the assistance of the mild-hybrid system provide brisk acceleration, achieving 0-60 mph in approximately 4.3 seconds. The 8-speed Steptronic transmission shifts smoothly and efficiently, with well-chosen gear ratios that keep the engine in its optimal power band. While not as overtly aggressive as the full-fledged M4, the M440i delivers ample power for spirited driving. The xDrive system provides excellent traction in various conditions, enhancing stability and confidence. Compared to the 430i models, the M440i offers a significantly more potent driving experience, while remaining more approachable and refined than the track-focused M4.
Equipment & Trim Levels
The M440i xDrive comes standard with a comprehensive array of features, including BMW’s Live Cockpit Professional (digital instrument cluster and infotainment system), leather upholstery, power-adjustable seats, automatic climate control, and a premium sound system. Exterior features include M Sport styling cues, such as unique bumpers, side skirts, and a rear diffuser. Optional extras include adaptive suspension, upgraded leather options, a head-up display, and various driver-assistance systems like lane departure warning and adaptive cruise control. The LCI update brought a revised front fascia, new LED headlights, and updated interior trim options.
Chassis & Braking
The M440i xDrive utilizes a sophisticated chassis setup designed to balance performance and comfort. The front suspension features spring struts with a transverse stabilizer, while the rear employs an independent multi-link spring suspension, also with a stabilizer bar. This configuration provides precise handling and a comfortable ride. The braking system consists of ventilated discs at all four corners, providing ample stopping power. ABS (Anti-lock Braking System) is standard, along with electronic brake-force distribution and brake assist. The M440i typically features larger brake rotors and calipers compared to the base 4 Series models.
Market Reception & Comparison
The BMW M440i xDrive has been well-received by automotive critics, praised for its potent engine, refined handling, and luxurious interior. It’s often positioned as a sweet spot in the 4 Series lineup, offering a significant performance upgrade over the 430i without the uncompromising nature of the M4. Fuel economy is respectable for a performance coupe, with combined WLTP figures ranging from 7.7 to 8.5 l/100 km (30.5 – 27.7 US mpg). Reliability has generally been good, although some owners have reported minor issues with the infotainment system. Compared to rivals like the Audi S5 Coupe and Mercedes-Benz C43 AMG Coupe, the M440i is often lauded for its engaging driving dynamics and well-balanced character.
Legacy
The B58 engine, found in the M440i, has earned a reputation for robustness and reliability. While long-term durability data is still emerging for the LCI models, the B58 has proven to be a durable and tunable engine in previous applications. The mild-hybrid system adds a layer of complexity, but early indications suggest it is reliable. On the used car market, the G22 4 Series, including the M440i, is expected to hold its value well due to its combination of performance, luxury, and brand appeal. The 2024 LCI facelift is expected to further enhance the model’s desirability and long-term collectibility.
